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Florida Erosion and Sediment Control Inspector's Manual Washing If conditions on the site are such that most of the mud is not removed by the vehicles traveling over the gravel , then the tires of the vehicles must be washed before entering a public road . Wash water must be carried away from the entrance to a settling area to ` remove sediment (See Plate 4 . 03b) . A wash rack may also be used to make washing more convenient and effective (See Plate 4 .03c) . r Location The entrance should be located to provide for maximum utility by all construction vehicles. ` Construction Specifications r The area of the entrance should be cleared of all vegetation , roots , and other objectionable material . A geotextile should be laid down to improve stability and simplify maintenance . The gravel shall then be placed over the geotextile to the specified dimensions . Any drainage facilities required because of washing should be constructed according to approved specifications . if wash racks are used , they should be installed according to manufacturer's specifications . Maintenance The entrance shall be maintained in a condition which will prevent tracking or flow of mud onto public rights-of-way. This may require periodic top dressing with 2-inch (5 cm) stone , as conditions demand , and repair and/or clean out of any structures used to trap sediments . All materials spilled , dropped , washed , or tracked from vehicles onto roadways or into storm drains must be removed immediately. Look for signs of trucks and trailered equipment "cutting corners" where the gravel meets the roadway. Sweep the paved road daily for sediments and stones . A ffiw�� wn 1 r r r r a Plate 4.03c Construction Entrance with Wash Rack Source: 1983 Maryland Standards for Soil Erosion and Sediment Control r 4-10